Abstract:
:Lysosome-associated membrane protein-1 (LAMP1) has been suggested to play complicated roles in cancer development and metastasis. The aim of this study was to explore the expression of LAMP1 in laryngeal squamous cell carcinoma (LSCC) and investigate the relationship between LAMP1 expression and clinicopathological characteristics in LSCC patients. One-step quantitative reverse transcription PCR (qPCR) tests (20 fresh LSCC and non-cancerous tissue samples) and immunohistochemistry (IHC) analyses (137 paraffin-embedded LSCC and non-cancerous tissue samples) were performed to evaluate the LAMP1 expression in both mRNA and protein levels. Results showed that the expression of LAMP1 in LSCC tissues was significantly higher than that in non-cancerous tissues. Furthermore, the expression level of LAMP1 protein was statistically associated with lymph node metastasis and TNM stage. Results of Kaplan-Meier survival and Cox regression analyses revealed that LSCC patients with high LAMP1 cytoplasmic expression (p=0.044), high cytoplasmic+low mesenchymal expression of LAMP1 (H+L) (p=0.015) and histopathological grade (p=0.014) encountered poor overall survival. The data implied that high LAMP1 expression is associated with unfavourable prognosis in LSCC patients, and LAMP1 may be identified as a novel prognostic biomarker.
journal_name
Pathologyjournal_title
Pathologyauthors
Lu M,Zhu H,Wang X,Zhang D,Xiong L,Zhu J,Mao Y,Qiang Jdoi
10.1016/j.pathol.2016.08.001subject
Has Abstractpub_date
2016-12-01 00:00:00pages
684-690issue
7eissn
0031-3025issn
1465-3931pii
S0031-3025(16)38284-8journal_volume
48pub_type
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